Yep, I've been using my brand new MacBook Air M1 with my Sony WH-1000MX3 headphones. I do the same thing 3 or 4 days a week: sit on the same corner of my couch, fire up the same apps on the same computer, and listen to a lecture and do some work.
Immediately after upgrading and restarting, my headphones connect (the Sony lady says in my ears "Bluetooth Connected" but no sounds comes out, and after 5-10 seconds it disconnects again. Restarted headset and laptop.
Guess I'll try deleting some files because someone on the internet said it works and I'll hope it doesn't break my laptop somehow.
C'mon Apple. This is lame. I'm already looking into 3rd party software to overcome your terrible windows tiling options/user experience, and now you've crippled my workflow. This is a work device, and the goal was for it to work right without distractions.
Update: I could not find the file, either by searching, finding my "Library" folder, etc. Luckily I found the other comment that gives the commands to put into the console, and it DID work.
(sudo rm -rf /Library/Audio/Plug-ins/HAL/
– Restart your Mac)
So yeah, all I really had to do was use superuser commands to remove files from my computer and trust that it would work! Great experience, would recommend!